21187452

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12347}}^1$

素因数の和:12378

約数の個数: 48

約数和(自身を含む): 58084992

約数和(自身を除く): 36897540

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716, 12347, 24694, 37041, 49388, 74082, 135817, 148164, 160511, 271634, 321022, 407451, 481533, 543268, 642044, 814902, 963066, 1629804, 1765621, 1926132, 3531242, 5296863, 7062484, 10593726, 21187452]

約数ペア:

[(1, 21187452), (2, 10593726), (3, 7062484), (4, 5296863), (6, 3531242), (11, 1926132), (12, 1765621), (13, 1629804), (22, 963066), (26, 814902), (33, 642044), (39, 543268), (44, 481533), (52, 407451), (66, 321022), (78, 271634), (132, 160511), (143, 148164), (156, 135817), (286, 74082), (429, 49388), (572, 37041), (858, 24694), (1716, 12347)]